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Dynomax or Vibrants. Dynomax for loudness and rasp, Vibrant for bass and depth. I prefer Vibrants myself. Still plenty loud but has a much deeper, more tuned high performance sound than the Dynomax. I've had both. I don't have the part #s handy at the moment.

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Deleting the mids will make your exhaust sound like chit, imagine you bolted a couple of tubas to the end of your exhaust, and when you give her throttle, the gases flow through the tubas at full speed amplifying the noise, freaking disgusting... Dynomax minis will quiet down the tuba like sound in the exhaust from the mids delete, but instead of tubas, now you'll have trumpets when you open her up. I wish i would have known better, especially since plenty of people will say to add the minis to give you loudness, because you can have the pair for $75 , it's loud for sure with the minis, but i grew despising that raspy trumpet noise that starts as low as 2000rpm even at half throttle, I also tried Magnaflow Magnapacks replacing the minis, they smoothed out the raspiness of the minis, but can you believe the damn thing still sounded like Harley with a pair of trumpets in the back ?

I guess the 6.4 doesnt behave with bullet type mufflers (personal opinion), squared mufflers will fix that (Black Widow, Dr Gas Revpro, Spintechs, Dynomax Ultra flo, etc) , but be aware they might drone a lot more than bullets, it's the location of the mids that does it. I'm running Black Widow Race Venom mufflers, they're loud (surprisingly a lot quieter behind the wheel compared to the minis), if you're standing behind the car, they scream pure muscle without the damn trumpets, but they drone a lot more than the minis, and i mean they drone a lot more, i love it though, call me crazy, i think a little drone here and there just adds more character to the exhaust, keep in mind i don't have the factory resonators either, but you can always try j pipes if the drone was too much for your ears.

I looked at Black Widow Race Venom, and Dynomax Ultra flow, i went with the Widows because i've never tried them before, and now that i've been driving with them for a couple of months, i love the damn things

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I guess I am one of those who like their exhaust sounding like ass. I would replace the mid muffler with straight pipe. I deleted by my mid muffler and resonator with straight pipe. There's literally nothing from the cats to the tips. All straight pipe, and it sounds great. However, this is on a 2013 6 speed manual with 2.5 inch pipe with no active exhaust.

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I'll be putting dynomax mini bullets on my 6.4 as soon as I can find a trustworthy shop to do it right. Have them sitting in a box right next to me. There's barely anything to them, but at $50 for the set I can't really complain.

I'm getting these installed tomorrow (yay!), and didn't want to delete the resonators, as I do not want drone. Can I have another set of dynomax installed as resonators or can someone recommend a good resonator to replace stock?

I’m really considering the mid muffler change to one of these. About the time I think I have decided on one I read an article or see a YouTube review which sways me to the opposite side. I really just want a deep powerful sound like an old school 440 or 426. I’m not so much about loudness or...

I have had the mid muffler delete since the car was new but this winter installed kooks long tubes and catted mids. Since then the car is very loud .i love it but my local police department doesn't. Got pulled over last weekend and got a warning for exhaust noise. I am looking at putting...

Hello All,
I am looking for suggestions for a muffler shop that can at a reasonable cost do a great job at swapping out my mid mufflers for race bullets (which I have purchased) on my SPS here in Orange County, CA.
Thanks so much
-Tim